Printed Circuit Board for Spas and Hot Tubs Shop by Manufacturer Balboa Cal Spas Daughter Board Down East Spas Expander Board Jacuzzi Master Spas Michael Phelps Swim Spa PC Boards Sundance Twilight by Master Waterway Waterway Neo Enter your PCB number here or search all boards below Categories: All PC Board Daughter Board Expander Board PC Boards BP100 Balboa Gecko All PC Board / All PC Board Daughter Board Expander Board PC Boards BP100 Balboa Gecko 53544 Balboa VS/EL Series Expander Board Sale Price: $67.00 Original Price: $79.00 Sale Add To Cart Added! 53426 Balboa® Expander Board VS511 / 511SZ / EL Series Sale Price: $74.00 Original Price: $89.00 Sale Add To Cart Added! Balboa 53680 Expander PC Board, 2 Relays, X-P632 Sale Price: $77.00 Original Price: $92.99 Sale Add To Cart Added! 775-0502 Waterway NEO 2100 PC Board, Daughter Board 2 (DB-2) $139.00 Add To Cart Added!